Enhance your cycling experience with the Chromoly Fixie Single Speed Flip Flop Hub Sprocket from the renowned R4 brand. Crafted with premium quality chromoly material, this sprocket ensures durability and high performance.

The 15T sprocket is designed to replace your worn-out freewheel cog, providing a smooth and efficient ride. Its compatibility with 8-Notch and standard 4-Notch Freewheel Remover makes it a versatile choice for bike enthusiasts.

The New DNP Premium Heavy Duty Freewheel boasts a thread size of M30*1 and is compatible with 15T sprockets that work with 1/2′ 1/8′ chains. This freewheel is specifically designed to fit flip-flop hubs with dual diameter thread widths, ensuring a secure and reliable connection.